Audi A6 vs Audi Tt: MOT reliability compared
Updated 05 September 2026.
21.3%
Audi A6 MOT failure rate, 0.5 pts lower than Audi Tt
Audi A6 is the more reliable MOT performer: 21.3% of Audi A6 MOTs fail versus 21.8% for Audi Tt, a 0.5 point gap.
| Metric | Audi A6 | Audi Tt |
|---|---|---|
| MOT failure rate | 21.3% | 21.8% |
| Tests analysed | 2,819,307 | 2,360,430 |
| Most common failure | Tyres (26.8%) | Lamps & electrical (32.8%) |
Questions and answers
Which is more reliable, Audi A6 or Audi Tt?
Audi A6 is the more reliable MOT performer: 21.3% of Audi A6 MOTs fail versus 21.8% for Audi Tt, a 0.5 point gap.
What is the MOT failure rate of the Audi A6?
21.3% of Audi A6 MOT tests result in a failure, from 2,819,307 tests.
What is the MOT failure rate of the Audi Tt?
21.8% of Audi Tt MOT tests result in a failure, from 2,360,430 tests.